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Listening Quiz: Thảo Luận Về Giới Hạn Phát Hiện Của Phương Pháp Phân Tích – Medium Level
Th8 5, 2025
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
According to Emily, what is the method’s detection limit?
0.1 ppm
1.0 ppm
0.01 ppm
10 ppm
Explanation:
Emily says, “Our method can detect substances as low as 0.01 ppm.”
2.
How does Emily describe the reliability of the detection limit?
It only works for one type of sample
It is uncertain because it has not been tested much
It is very reliable because it was tested many times
It changes completely with every sample
Explanation:
Emily says, “It is very reliable. We tested it many times.”
3.
What does Emily say about the detection limit when different samples are used?
It sometimes varies a little, but usually stays the same
It always becomes lower
It always becomes higher
It cannot be measured with different samples
Explanation:
Emily explains, “Sometimes it varies a little, but usually it stays the same.”
4.
What does John ask Emily to send him?
The project requirements
A new sample
The exact price of the method
The test reports
Explanation:
John says, “Can you send me the test reports?”
5.
Why does John likely thank Emily at the end of the conversation?
He now understands the detection limit and has received helpful information
He decided not to use the method anymore
He is upset that the detection limit is too high
He needs Emily to retest the samples immediately
Explanation:
John says, “This helps me a lot,” after Emily explains the detection limit, reliability, and test reports, which shows he found the information useful.
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